Shovel and dredge



Sept? 15, 1925.

J. A. SCHARF SHOVEL AND DREDGE Filed Dec. 30, 1924 5 Sheets-Sheet i 3 .7 INVENTOR BWW WITESS a. W, W

ATTORNEYS.

Sept. 15, 1925.

J. A. SCHARF SHOVEL AND DREDGE 5 Sheets-Sheet 2 File d Dec 30, .1924

IWHLNAESS'ES I w @044.

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ATTORNEYS 5 Sheets Sheet 5 INVELNTOR,

ATTORNEYS;

Sept. 1s, 1925.

J. A. SCHARF sHo'vEL AND DREDGE Filed Dec. 50, 1924 Sept. 15, 1925;

J. A. SCHAFZF SHOVEL AND DREDGE 5 Sheets-Sheet '5 Filed Dec. 30, 1924 NW v ' 7 NINVENTOR, JO/uu 1J $62,776

' BY Ala/ a 3%;

ATTORNEYS.

WITNFSSES w w;

Patented fie pt. iii

l ll

. 591E153" llllliltllll S'CEIAREE,

To all whom it"ma-g concern:

Be it knowrftliet 1, JOHN ADAM Scions. a citizen of the United States, end a. resident of Richwood, in the countyoi Union end State of Ohio, have invented certain new end useful ln'ipiievements in Shovels mod Dredges, of which the following is e specification.

This invention relates to a. power shovel or dredge for light and rapid Work and has for its object the provision of device which may be incorporeteil as it unitary structure in a. tractor or which may be mounted on skids and driven by a stationary engine.

Another object of the invention the provision of a power shovel for excavating or loading in the process 01" road or building operations or for aiding in the handling of agricultural products and in which sngu lerly bent erms cooperate with main shovel supporting beams to elevate the shovel placethe same in a dumping position;

A' further object of the invention. the provision of at power shovel leaving so poi-ting beams coopereting with tilting arms for propeil elevating 21 shovel, the beams and arms oldiieg into it compost unit at the completion of the ieisii'ig; "operation;

with mechanism for swinging; the sliovel to either side of the main support for the shovel.

A 'still furtlier object of the inve-iitioii is the provision of an overhead structure for aiding in elevating the shovel which consteiitly changes its angle of fulcruining in order toiplece the loud at points along tlie main su'oport of the shovel to prevent tiltiiigg' of the SUPPOFJE.

This invention will lie stood from s considetetioo tli following de tailed description, is. vie-wolf the eccoiope'ov ing drawing forming at suit of the specificetion; nevertheless it to be understood that the invention is not confined to the disclosure, being susceptible of such changes and modifications which shell define no best material departure from the salient "lectures of the invention as expressed in the pended claims.

In the drawings:

Figure 1 is a side view. in elevation of the power shovel shown mountedoo' o. tractor.

" Figure 2 is s ii'egmeiitery view showing the disposition of the driving csloles Elm. the shovel.

Figure 3 is plain view of an etteoiiment for operating 2. shovel.

Figure 4' is e fragmentary View showing the position of the forward driving celiles when the soovel lies been elevetetl.

Figure .5 is e fragmenteify side view of the shovel unit in elevete'd position.

igure {die it plain view of the opeietiiig mechanism of'tlie shovel. limit.

Figure 7 is side view oi the opei'stiiig inecliiinism.

Figure 8 is e pleii view oi't' the shovel unit.

Figure 9 is a. detailed view partly section of the driving mechanism to: the turntable.

Figure 10 is vertical section showing e detail of the clutch mechanism for the tui'w table.

Figure 11 is a vertical section showing 22. detail of the adjustable legs for the size porting flillll.

listen-ling more particularly to tile lFttW- logs-5,1 designetes a. tractor heving e. veer axle housing 2 and a. di-iving drum 3. A. belt at driven from drum 3 drives e doom 5 mounted on shaft 6. The shaft is ported. in bearings carriedby pistes '7 do pending from o. pail oil liorizontel beams 8.

These beams form the general support for the lifting mechanism and ere maintained in predetermined elevated position at the reel" by peivol legs 9 clamped to the code housii od e pair of adjustable legs A transverse bar 11 connects the front ends of the beams 8 and pair of vertically disposed burs ere supported from seio 'ioiiit. A. pair of hi" bars 13 end 14 we secured to the lo. of end each leer leg 9.

been leg 1% is mounted in a chime -l shaped guide 16 secured to circular track e.

"with e collar 17 embracing; the guide and e 1% at each side the UEZG'SOP. Ber 13 ex s l'oalwtl'filly end. is connected to e leg 9 me bar 14% is directed rem-weirdly and up!- wei'dly and connected to the upper end of e- Wl 1'8 adopted to engage any one of e till Eli

llli

till

The upper end of said leg provided erator of said tractor. A pull on the chain releases the pawl and ride in the guide 16. r

A disk 22 is secured to the lower end of the leg 10 to prevent the leg from sinking permits the leg 10 to into soft ground. The adjustable legs per-:

mit elevation or lowering of the forward end of the lifting device.

A plate 26 riveted to the upper end of the guide 16 is perforated to receive a ring 27 depending from a lug.' This lug in turn is riveted to the track 7. This arrangement permits the leg to be swung in a manner that it may be placed at an angle tothe vertical and brace the track againstside sway during operation.

The circular track 7 is of angle iron c0nstruction, is secured to the forward ends of the beams 8 and braced by intermediate bars 23 and a rear end bar 24 connected to the beam'8; An eccentric portion 25 embraced by the main track 7 carries the bar 24. The track at its periphery is provided with a plurality of spaced grooved pulleys 28 supported by brackets 29 riveted to said track.

These pulleys guide a travelling chain 30 driven by a sprocket 31. The ends of said chain are connected to the forward ends of bars 32 which comprise the shovel frame.

The shovel frame bars are secured .to lugs 33 carried by a turntable 34.- rotatably mounted on the transverse brace bars 23' of the track 79. The shovel frame bars 32 have brackets 36 upon which are mounted rollers The rollers in turn ride on the horizontal flange during angular disposition of the shovel frame. It will be noted that the shovel frame is at a higher horizontal level than said track and cleats 30 depending from the bars 32 provide means for securing the chain 30 in proper alinement with the pulleys 28.

A pivot rod 37 is mounted at the forward ends of the shovel frame bars 32. A pair of lifting arms 38 are pivoted on'the rod 37 and have annular extensions 39 carrying grooved pulleys l0 and 41. The outer free ends of the arms 38 converge and carry a grooved pulley 42. On the rod 37 are mounted a pair of pulleys 43 and 14-.

A pair of fulcruming arms 45 pivoted on the rod 37 carries a rod 46 intermediate their ends upon which are rotatably mounted a pair of grooved pulleys 17 and 18. The outer free ends of the arms 45 are converged to receive agrooved pulley 49 mounted on a pin 50.

A shovel handle 51 is slidablyv mounted in a pair of guides 52 and 53. Guide 52 has a pair of cars 54 projecting rearwardly and pivoted on a pin 55 which carries the pulleys 40 and 41. Guide has forwardly projecting cars 56 pivoted on the pin 50 at the outer free ends of the fulcruming arms .45.

A shovel 57 is pivoted by means of ears to the lower end of the 'handle51 and is adapted to be tilted normally at an angle to the horizontal. An adjustable tie rod 58 is connected between the upper forward end of the'shovel 57 'and a lug 59 secured intermediate the ends of the handle.

The driving mechanism is supported by the bearing plates .7 suspended from the beams 8. The shaft 6 drives a gear 61. meshing with a gear 62 which in turn meshes with a gear 63. Gear 62 drives a shaft 64 and when desired a drum 65 through a clutch 66. A fork 67 operated by a shaft 68 actuates the clutch and a collar 69 rigid with the shaft 68 is operated through a link 70 and a bell crank lever 71. A lever 72 pivoted on a shaft 73 is operated by a crank 74 and a link 75 connecting lever 72 with the bell crank lever 71. A brake 76 is applied .to

the drunr65 and operated through a bell crank lever 77, a link 78, a lever 79, a link 80 and a pedal 81. A pawl 82 engaging a.

ratchet 83 maintains the determined position.

The lever 81 is rigid with a shaft 84 carried by brackets on the brace bars 13 and the link 80 is connected to a lever 85 rigid with shaft 8 1.

The gear 63 drives a shaft 86 upon which are loosely mounted a; pair of drums 87 and 88. A clutch 89 connects drum'87 with shaft 86 and is operated by a fork 90 rigid with a sliding shaft 91. A clutch 92 act "ated by a fork 93 is also rigid with shaft 91. This shaft is operated through a bell-crank lever 91- connected by a link 95 and a collar 96 to shaft 91. A lever 97 pivoted on the rod 7 3 operates lever 94 pedal 81 in a prethrough a link 98. Rod 73 is carried by bracket plates 99 depending from the beams 8.

A rock shaft 100 'is rotatably mounted in the bearing plates 7 and is actuated through a lever 101, a link 102 and a bell crank lever 103 pivoted at 104 on a. brace bar 13. An arrangement similar to the device for operating the brake band 76 is provided and comprises a pedal 105, a pawl 106 and a ratchet 107. Lever 108 on shaft 100 actuatcs a brake band 109 on pulley 88, while a lever 110 actuates a brake band 111 on pulley 87.

A bracket 112 is secured to the turntable 34 and carries a plurality of grooved pulleys 113, 114, and 115 for a purpose which will be presently explained. i

The sprocket 31 is mounted on a shaft 116 carried by a bracket 117 which is bolted to the angle iron bar 24. Another gear 118 is rigid with shaft 116 and is driven by gear 119 or gear 120. A clutch 121 driven by shaft 122 through a key. connects gear 119 to said shaft while a clutch 123 also driven byshaft 122 connects said shaft and gear Little-Jot in bearings termed in brackets 130 dependv ing from and secured to the beams 8. The

'sbat't 122 is driven through a sprocket on said shaft and a chain 131 which is driven by a sprocket on the shaft 86.

The turntable has :3. depending flange 132 at its inner periphery and a not 133 having a threaded engagementwith said flange locks said table against displacement from a plate 13% during turning of saiol table. The plate is mounted on the beams 8. In a bracket 135 on the turntable is mounted a pulley 136,

A cable 137 which is adjustable lSEBCUl'QCl to the shovel frame 32 and to the free end of a clevis 13f mounted on epin 139 secured. to'

the main shovel beams This cable limits the forward movement off said beams.

A cable i l-9 seemed to the pin 139 entrained on pullev ll and pulley'49 then clirectecl eearwardiv and entrained over pulle lie and out the pulleys 186. The end ot the cable is directed below and secured to drum 65, l vl eiri eaiil cable is Wound on (Ii-inn 65, the urine are drawn upwardly until they are poeitioncd adjacent the pin 139, and at the same time forcing the shovel forwardly then upwardly through the rocking motion of arms 39. a

A cable M1 is fastened to a, perforated lug 142 on the shovel 57 and when operated pulls said shovel outwardly Said cable travels over pulleys; ac, 47, 115 and a pulley 136 and. theeie directed over the top of drum 87 and secured thereto.

illegible 14:3 hasen end fastened to a pc foratetl log 14% on the shovel 57, the other end being directed over the top of drain 88 and secured thereto, Gi lie intermediate portion of the cable is entrained over pulley 1, antler policy 48 over pulley 113 and. about a policy 136 When the dipper is lowered ttlblGS tell and M3 ride respectively on out .ievs end; Pulleys at! and 4:8 maintain eioo cl" cables 141 and 143 during ope? .tlilfill of the ssliovel.

f clumping cloor hinged at we to the e per end of the shovel provides es for discharging the materials from me shovel when the same has been elevated Elli properly positioned. A pin 147 sliding guides 148 isv operated by a cable M9 llich lees an end located adjacent the operits usual socket with a shovel a pair we eta etore "i i lien. the pin is removed from the door will automatically drop.

in operative position in Figure l, Clutch lever '37 is moved to the left thrown in clutch 89 and locking (lltllll 87 to shaft 66 whereby a poll is exerted on cable 141 form ing the shovel s eight forwardly and thus filling the same. At the forward limit oi. movement oi the shovel or at the completion of the digging operation, power is shut oil The operation 0'1 my device as follows: The shovel and its'releted parts are shown from cable 14-1 by reversing the Inirvement of clutch lever 97 to place the clutches 89 and in neutral. it must be borne in mind that when cable 141 is wound on its respec tive drum cable 143 is unwound from drum 88 to permit slack in cable M3.

Drum is connected to shaft G l by the shifting of clutch 66 through lever 74 when cable 14-0 is Wound. on said. drum raising arms until said arms aline with the main shovel soppot'tmg arms At such a disposition of arms 38, the cable M0 pulls both sete of arms 38 and. 4:5 rearwardly until the dipper handle said inns reach the folded position on top of: the main frame and tractor and power is withdrawn from the cable by at neutral position of lever Tel end its respective clutch. The brake bands '76-, 109 and ill are applied as is well known bytlieir associated pedals to hold the respective drums against release of the cables connect ed. to the drums,

Power may be applied to cit-her ot the gears H9 or 1'20 at any time after the com pletion of the diggi operation for swinging the main SllOVl Frame 32 to either the right or left posit-ionic" the tractor as the case may be for dumping the dirt collected in a. W: on., 'llie shifting of the clutch rod 12;} will cauee a :rotation of the turntable Set and likewiseshovel frame What ie claimed is:

l. a power shovel, a rotatable carriage, frame bare mounted on the carriage, a pair 0t angnlarly bent; lifting arms pivoted on the frame bars and provided with a guide, a shovel -3- provided with a shovel, a

ing ,sndebly inoiinteu in the guides means; for supporting the handle iii the guides, and means for operating the angularly bent arms and for tilting the lifting bare Wl'iereby the shovel is moved forwardly and zip- Warcllyi .lo a power shovel, a rotatable carriage frame. bar mounted on the carriage, angularly bi portions on the outer ends of the frame bare, a guide pivotally connected with the lower ends of the arms, a shovel bandleprovided oi? lilting bars pivoted,

lOO

lit-ting bars; pivoted at their bent All n the frame bars and provided with a guide,-

on the frame bars, and carrying a guide, said handle being slidably mounted in the guides, means for supporting the handle in the guides, and means for operating the angularly bent'arms and for tilting the lifting bars whereby the shovel is moved forwardly' and upwardly.

3. In a power shovel, a rotatable carriage, frame bars mounted on the carriage, a pair of angularly bent lifting ar s ivoted on the frame bars and'provided wit a guide, a shovel handle provided with a shovel, a pair oflift-ing bars pivoted on the frame bars at the pivotal connection of the lifting a shovel handle provided with a shovel, a pair of lifting bars pivoted on the frame bars and carrying a guide, said handle being slidably mounted in the guides, means for supporting the handle in the guides, means,

for operating the angularly bent arms and for tilting the lifting bars, whereby the shovel is moved forwardly and upwardly, and means for rotating the carriage whereby the shovel may be swung througn an angle of 180.

5. In a power shovel, a rotatable carriage,

, frame bars mounted on the carriage, a pair of angularly bent lifting arms pivoted on the frame bars and provided with a guide,

a'shovel handle provided with a shovel, a pair of lifting bars pivoted on the frame bars and carryin a guide, said handle being slidably mounte in the guides, means for supporting the handle in the guides, means for oscillating the lifting arms to an alining position with the lifting bars, and means for causing-the alined lifting arms and bars to be folded back on the frame bars.

6. In a power shovel, a rotatable carriage, frame bars mounted on the carriage, lifting arms having a lower portion bent at an angle to an upper portion and pivoted on the frame bars, a guide pivoted to the lower portions of the arms, lifting bars pivoted on the frame bars, a guide pivoted on the upper ends of the lifting bars,-a shovel hand-1e provided with a shovel slidably mounted inthe guides, means for sustaining the handle in the guides, means for moving the upper portions of the lifting arms to alining position with the lifting bars, and

means for causing the al'rned lifting arms and bars to be moved to a reclining positio on the frame bar's.

7. In a power shovel, a rotatahle carriage,

frame bars mounted on the carriage, lifting arms having a lower portion bent at an angle to an upper portion and pivoted on.

ends of the li ing bars, a shovel handle provided with a shovel slidably mounted on the guides, means for sustaining the handle in the guides, means for oscillating the upper Ll'tl is of the lifting arms to an elevated pOSltiol'l whereby the shovel is moved-for wardl and upwardly, said sustaining means at this time permittin shovel in the guides, an means for causing the lifting bars and arms to be oscillated to a reclining position on the frame bars.

8. In a power shovel, a rotatable carriage, frame bars mounted on the carriage, lifting arms having a lower portion bent at an air gle to an upper portion and pivoted on the frame bars, a guide pivoted to the lower per-- tions of thearms, lifting bars pivoted on the frame bars, a guide pivoted on the upper ends of the lifting bars, a shovel handle provided with a shovel slidably mounted in the guides, means for sustaining the handle in theguides, means for moving the upper portions of the lifting arms to alining position with the lifting here, means forcausing the alined lifting arms and bars to be moved to a reclining position on the frame bars, and means for causin rotation of the carriage.

'9. In a power 5 ovel, a rotatable carriage,

frame bars mounted on the carriage, lifting arms having a lower portion bent at an angle to an upper ortion and pivoted on the frame bars, a guide pivoted to the lower portions of the arms, lifting bars pivoted on the frame bars, a guide pivoted on the upper ends of the lifting bars, a shovel handle pivoted with a shovel slidably mounted on the guides, nreans for sustaining the handle in the guides, means for oscillating the u per portions of the lifting arms to an e evated position whereby the shovel is moved forwardly and upwardly, said sustaining means at this time permitting lowering of the shovel 1n the guides, and means for was ing the lifting bars and arms to be oscillated to a reclining position on the frame bars,

said shovel arm being carried to a reclining position on the carriage, and means for simultaneously rotating the table when the lifting arms and bars are oscillated to a re* clining position on the carriage.

10. In a power shovel, a rotatable carriage, frame bars mounted on the carriage, lifting arms having a lower portion bent at an angle to an upper portion and pivoted on the frame bars, a guide ivoted to the lower portions of the arms, lifting bars pivoted on the frame bars, a guide pivoted on the upper ends of the lifting bars; a shovel handle provided with a shovel slidably lowering of the; ii

mounted in the guides, moons for sustaining the handle in the guides, means for moving the upper portions of the lifting arms to siiu- Zing position. with the lifting; hers, means for causing" the sliced lifting arms and hers to be moved to s reclining position in the from: here, and inesns for retaining the lifting arms in an elevated position.

11. ln a, power shovel, a rotatable our risgc, frame bars mounted on the carriage, lilting arms having a lower portion bent at an angle to on upper portion and pivoted on the frame bars, a guide pivoted to the lower portions of the arms, lilting hers pivoted on the frame bars, a guide pivoted on the upper ends of the lifting have, n shovel handle provided with a shovel slidsbly mounted. in the guides, means for sustaining the handle in the guides, pulleys mounted on the upper ends of the lifting bars and on the outer ends of the upper portions of the-lifting; arn'ls, a drum, means for operating the drum, a cable connected to'the liltingbnrs and entrained around the pulleys and connected to the drum, whereby rotation of the drum causes the upper portion'of the lift lug arms to be elined with. the lilting bars, and means for moving the sliced lilting hers and arms to a reclining position on the. car-- riege.

12. In power shovel, sv rotatable can riefle. frat 1e bars mounted on the csrris 'e to J to 7 lift 1g erms having a lower portion bent at an angle to an upper portion and pivoted on the "frame hers, a guide pivoted to the lower portions of the arms, lilting burs pivoted on the frame bars, a guide pivoted on the up- 1 per ends ot the lifting bars, s shovel handle provided with :1 shovel slidably mounted in the ghides, moons for sustaining the handle int 1e guides,:means for moving the upper portions of the lifting arms to dining 1305i", tion with the lifting; bars, means for causing the slincd lilting arms and bars to be moved to a reclining position on the frame bardsnd means for limlting movement of the lifting bars in one direction.

'13. lo a power shovel, u rotatable car-- riage, frame bars mounted on the carriage, lifting or ms having a lower portion bent at an angle to an upper portion and pivoted on the frame bars, a guide pivoted to thelowcr nortion of the arms, lifting bars pivoted on the Frame burs, a guide pivoted on the, upper s of the lifting bars, at shovel handle pro vi ed with e shovel slidsbly mounted on the rniides, means l r sustaining the handle in the guides, means for oscillating the upper portions of the lifting arms to an elevated position whereby the shovel is moved ttorweirdly and upwardly, said sustaining means at this time permitting lowering; of the shovel in the guides, and means for causing the lifting bars and arms to be oscillated to s reclining position on the frame bars, and

a cable connected to the carriage and upper ends of the lilting; bars for limiting outward movement of the lifting bars.

14:. lln a power shovel, the combination of a tractor having a power plant, :2 frame mounted on the tractor and provided with a track, a carriage pivotslly mounted on the frame and provided with rollers engaging the truck, frame bars secured to the carriage, angulsrly bent lifting arms pivoted to the frame bars and. provided with a guide, a shovel handle provided with a shovel, a pair of lifting bars pivoted on the frame bars and carrying a guide, said handle being ,sliduhly mounted in the guides, means for supporting the handle in the guides, and means for operating the sngularlvbent arms and for tilting the lifting bars whereby the shovel is moved forvvardlv and upwardly.

l5. ln a power shovel, the combination of a tractor having a power plant, frame mounted on e tractor and provided with a track, a carriage pivotsllvmount ed on theframe and provided with rollers engagingv the track, frame bars secured to the esrrisge, anguierly bent lifting urine pivoted to the frame hers and provided with e guide,

lifting bars provided with a guide and pivotelly connected with the frame bars, a handle slidobly mounted. in the guides and provided with a shovel, pulleys carried by.

the lifting arms and bars, at cable connected lifting bars provided vvith a guide an piv otslly connected with the frame hard, a handle slidebly mounted in the guides and provided with a shovel, pulleys carried by the lifting arms and bars, a cable connected to the lifting" bars and entrained over the pulleys, adrum operstively connected with the power plant end the cable for winding the cable and oscillating the liftingarms and bars whereby the shovel is lifted, and means for causing the lifting arms and bars to assume :1 reclining position on the carriece,

1!. ln power shovel, the combination of e tractor having a power plant e' frame mounted on the tractor and provid track, a carriage pivotally mounted on the frame and provided with rollers engaging the track, frame bars secured to, the carriage,

ed with a angulerly bent liftin arms ivoted to the frame bars and provi ed "wit; a guide, lifting bars provided with a guide and pivotal- 1 connected with the frame here a handle 6 s idebly mounted in the guides and provided with a shovel; pulleys carried by the lifting arms and hers, a cable connected to the lifting bars and entrained over the pulleys, a drum operatively connected with the 10 power plant and the cable for Winding the cable and OSClllfLlDlIl? the lifting arme and bars whereby the s level is lifted, a cable connected to the shovel, a drum driven by for sustaining the shovel in a predetermined vertical position.

JOHN ADAM SCHARF. 

